Plate XX.
BALCONY AND LIGHT-ROOM.
LIGHT-ROOM AND BALCONY.
Drawn by W. Lorimer
Engd. by J. Moffat Edinr.
PLATE XX.
Pl. XX.
Fig. 1. a a represent the Balcony or walk round the exterior of the Light-room; b b, &c. the brass bats, made in the form of the paw of an animal, are used for supporting the balcony-rail; c c the two Alarm-Bells; d d the hammers by which they are tolled, during the continuance of foggy or stormy weather; e e the case for defending the levers which work the hammers; f f f the stone parapet-wall of the Light-room, of an octagon form on the outside, and circular within; g g g the cast-iron sill of the lantern; h h, &c. the angular cast-iron pillars or mullions, formed by the junction of the contiguous parts of two of the sash-frames; i i, &c. the smaller upright bars, forming the astragals or principal divisions of the sash-frames; k k, &c. the grated cast-iron trimming-path; l the smoke-tube, leading from the kitchen through the cupola or roof; m the trap-ladder leading from the light-room-floor to the trimming-path; n n the reflector frame or chandelier, on which are seen 8 of the reflectors marked o o, &c. with their oil-fountains p p, &c. the whole being framed or built upon the moveable upright-shaft q.